气候变化领域集成服务门户(CCPortal): Estimating the Impacts of Radiation Belt Electrons on Atmospheric Chemistry Using FIREBIRD II and Van Allen Probes Observations

CCPortal

DOI	10.1029/2020JD033098
	Estimating the Impacts of Radiation Belt Electrons on Atmospheric Chemistry Using FIREBIRD II and Van Allen Probes Observations
	Duderstadt K.A.; Huang C.-L.; Spence H.E.; Smith S.; Blake J.B.; Crew A.B.; Johnson A.T.; Klumpar D.M.; Marsh D.R.; Sample J.G.; Shumko M.; Vitt F.M.
发表日期	2021
ISSN	2169897X
卷号	126 期号:7
英文摘要	This study considers the impact of electron precipitation from Earth's radiation belts on atmospheric composition using observations from the NASA Van Allen Probes and NSF Focused Investigations of Relativistic Electron Burst Intensity, Range, and Dynamics (FIREBIRD II) CubeSats. Ratios of electron flux between the Van Allen Probes (in near-equatorial orbit in the radiation belts) and FIREBIRD II (in polar low Earth orbit) during spacecraft conjunctions (2015–2017) allow an estimate of precipitation into the atmosphere. Total Radiation Belt Electron Content, calculated from Van Allen Probes RBSP-ECT MagEIS data, identifies a sustained 10-day electron loss event in March 2013 that serves as an initial case study. Atmospheric ionization profiles, calculated by integrating monoenergetic ionization rates across the precipitating electron flux spectrum, provide input to the NCAR Whole Atmosphere Community Climate Model in order to quantify enhancements of atmospheric HOx and NOx and subsequent destruction of O3 in the middle atmosphere. Results suggest that current APEEP parameterizations of radiation belt electrons used in Coupled Model Intercomparison Project may underestimate the duration of events as well as higher energy electron contributions to atmospheric ionization and modeled NOx concentrations in the mesosphere and upper stratosphere. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	atmospheric ionization; electron precipitation; FIREBIRD; ozone; radiation belts; Van Allen Probes
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185356
作者单位	The University of New Hampshire, Durham, NH, United States; The Aerospace Corporation, Los Angeles, CA, United States; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States; Montana State University, Bozeman, MT, United States; National Center for Atmospheric Research, Boulder, CO, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States
推荐引用方式 GB/T 7714	Duderstadt K.A.,Huang C.-L.,Spence H.E.,et al. Estimating the Impacts of Radiation Belt Electrons on Atmospheric Chemistry Using FIREBIRD II and Van Allen Probes Observations[J],2021,126(7).
APA	Duderstadt K.A..,Huang C.-L..,Spence H.E..,Smith S..,Blake J.B..,...&Vitt F.M..(2021).Estimating the Impacts of Radiation Belt Electrons on Atmospheric Chemistry Using FIREBIRD II and Van Allen Probes Observations.Journal of Geophysical Research: Atmospheres,126(7).
MLA	Duderstadt K.A.,et al."Estimating the Impacts of Radiation Belt Electrons on Atmospheric Chemistry Using FIREBIRD II and Van Allen Probes Observations".Journal of Geophysical Research: Atmospheres 126.7(2021).